(4aR,6R,6aS,6bS,7R,9aS,10aR,12aR)-6-Hydroxy-1,1,4a,6a,10a-pentamethyl-7-(4-methyl-pent-3-enyl)-3,4,4a,4b,5,6,6a,6b,7,9a,10,10a,12,12a-tetradecahydro-1H-9-oxa-pentaleno[2,1-a]phenanthrene-2,8-dione 12-.beta.-Hydroxykulactone AIDS-088008 AIDS088008